The effect of this summer's drought in the United States may well be felt around the world soon. That's because the U.S. is the world's biggest corn exporter. As harvests fall and prices rise, many of world's poor will feel the squeeze.

The effect of this summer's drought in the United States may well be felt around the world soon. That's because the U.S. is the world's biggest corn exporter. As harvests fall and prices rise, many of world's poor will feel the squeeze.